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vitekta - Gilead
vitekta - Gilead

... 7.1 Effect of Concomitant Drugs on the Pharmacokinetics of Elvitegravir 7.2 Established and Other Potentially Significant Interactions 7.3 Drugs without Clinically Significant Interactions with Elvitegravir ...
Drug exposure and EEG/qEEG findings
Drug exposure and EEG/qEEG findings

... There is a generally reciprocal effect between alpha and beta, as brain stem stimulation desynchronizes the alpha generators, beta is seen. During states of under-arousal, this relationship is not seen, as when the subject is alerted, when both alpha and beta increase. The point is that the arousal ...
A Review on Mouth Dissolving Film
A Review on Mouth Dissolving Film

... mouth dissolving film have led to wider acceptability of this dosage form by paediatric as well as geriatric patients. They also impart unique product differentiation, thus enabling use as line extensions for existing commercial products. This novel drug delivery system can also be beneficial for me ...
enclosure – ii
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... w/w) in combination were used as superdisintegrants. Then tablets were further evaluated for hardness, friability, drug content uniformity, in vitro dispersion time, wetting time and water absorption ratio. Based on in vitro dispersion time (approximately 12 s), one promising formulation was tested ...
Medical Emergencies in the Dental Surgery
Medical Emergencies in the Dental Surgery

... safe from the risk of loss or theft. Access to all emergency drugs in the dental surgery should be restricted to members of staff. Members of staff must ensure that patients or their carers or members of the public do not interfere with emergency drugs or equipment stored in the surgery. However, w ...
Highlights of PET studies on chiral radiotracers and drugs at
Highlights of PET studies on chiral radiotracers and drugs at

... Initial studies with BMY 14802 in vitro and in animals predicted that it would have antipsychotic properties without the extrapyramidal effects accompanying most conventional antipsychotic medications [Taylor and Dekleva, 1988]. For example, BMY 14802 prevents the behavioral effects of coadministere ...
A Novel Model for the Prediction of Drug
A Novel Model for the Prediction of Drug

... This study was performed in parallel in human plasma and Krebs-Henseleit buffer (KHB) fortified with 2 mM salicylamide. The salicylamide was used to reduce possible phase II conjugation to the precursor phase I metabolites, which are the analytes in this study (Lu and Li, 2001). Serially diluted ket ...
superbug - Ummafrapp
superbug - Ummafrapp

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Pharmacy Law Review 2010
Pharmacy Law Review 2010

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An Overview of Herbal Ecstacy and Other Stimulants
An Overview of Herbal Ecstacy and Other Stimulants

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The Drugs to Kill the Bugs: Part 1
The Drugs to Kill the Bugs: Part 1

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Contents - World Health Organization
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Product Development Issues of Powders for Injection
Product Development Issues of Powders for Injection

... primary pack allows the formulation of drugs that are thermolabile or unstable in aqueous solution. However, lyophilization normally yields an amorphous or partially amorphous product, which leads to solid-state instability (3). A more-stable crystalline stage can be obtained by crystallization in a ...
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Pharmacological drugs inducing ototoxicity, vestibular symptoms

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PharmII Block I Handouts
PharmII Block I Handouts

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28890-Review - F6 Publishing Home
28890-Review - F6 Publishing Home

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CMS Annual DUR Report - 2010 - Michigan Department of Health
CMS Annual DUR Report - 2010 - Michigan Department of Health

... accordance with OBRA ’90. DUR assesses data on drug use against predetermined standards, consistent with peer-reviewed literature, and the recommendations of the State’s DUR Board. The major components of DUR are Prospective DUR (ProDUR) and Retrospective DUR (RetroDUR). ProDUR provides for a review ...
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SEMINAR ON - Pharmawiki.in
SEMINAR ON - Pharmawiki.in

... Transporters and efflux systems Physicochemical properties of drugs Molecular weight Lipophilicity ...
Harvard-MIT Division of Health Sciences and Technology
Harvard-MIT Division of Health Sciences and Technology

... B. Mechanism of Action—incompletely understood 1. Aminoglycosides bind to ribosomes, with the different aminoglycosides binding to different sites (streptomycin to the 30S subunit, the others at other sites; streptomycin binding does not compete with binding of the other aminoglycosides). 2. The con ...
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Drug interaction



A drug interaction is a situation in which a substance (usually another drug) affects the activity of a drug when both are administered together. This action can be synergistic (when the drug's effect is increased) or antagonistic (when the drug's effect is decreased) or a new effect can be produced that neither produces on its own. Typically, interactions between drugs come to mind (drug-drug interaction). However, interactions may also exist between drugs and foods (drug-food interactions), as well as drugs and medicinal plants or herbs (drug-plant interactions). People taking antidepressant drugs such as monoamine oxidase inhibitors should not take food containing tyramine as hypertensive crisis may occur (an example of a drug-food interaction). These interactions may occur out of accidental misuse or due to lack of knowledge about the active ingredients involved in the relevant substances.It is therefore easy to see the importance of these pharmacological interactions in the practice of medicine. If a patient is taking two drugs and one of them increases the effect of the other it is possible that an overdose may occur. The interaction of the two drugs may also increase the risk that side effects will occur. On the other hand, if the action of a drug is reduced it may cease to have any therapeutic use because of under dosage. Notwithstanding the above, on occasion these interactions may be sought in order to obtain an improved therapeutic effect. Examples of this include the use of codeine with paracetamol to increase its analgesic effect. Or the combination of clavulanic acid with amoxicillin in order to overcome bacterial resistance to the antibiotic. It should also be remembered that there are interactions that, from a theoretical standpoint, may occur but in clinical practice have no important repercussions.The pharmaceutical interactions that are of special interest to the practice of medicine are primarily those that have negative effects for an organism. The risk that a pharmacological interaction will appear increases as a function of the number of drugs administered to a patient at the same time.It is possible that an interaction will occur between a drug and another substance present in the organism (i.e. foods or alcohol). Or in certain specific situations a drug may even react with itself, such as occurs with dehydration. In other situations, the interaction does not involve any effect on the drug. In certain cases, the presence of a drug in an individual's blood may affect certain types of laboratory analysis (analytical interference).It is also possible for interactions to occur outside an organism before administration of the drugs has taken place. This can occur when two drugs are mixed, for example, in a saline solution prior to intravenous injection. Some classic examples of this type of interaction include that Thiopentone and Suxamethonium should not be placed in the same syringe and same is true for Benzylpenicillin and Heparin. These situations will all be discussed under the same heading due to their conceptual similarity.Drug interactions may be the result of various processes. These processes may include alterations in the pharmacokinetics of the drug, such as alterations in the absorption, distribution, metabolism, and excretion (ADME) of a drug. Alternatively, drug interactions may be the result of the pharmacodynamic properties of the drug, e.g. the co-administration of a receptor antagonist and an agonist for the same receptor.
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